Home / 11,022.72-15,212.64-8,223.36

Finding the Fourth Proportional to 11,022.72, 15,212.64 and 8,223.36

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Solution

The fourth proportional to 11,022.72, 15,212.64 and 8,223.36 is: 11,349.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,022.72 : 15,212.64 = 8,223.36 : x
  2. Step 2: Convert to fraction form
    11,022.72/15,212.64 = 8,223.36/x
  3. Step 3: Cross multiply
    11,022.72x = 15,212.64 × 8,223.36
  4. Step 4: Simplify right side
    11,022.72x = 125,099,015.27
  5. Step 5: Solve for x
    x = 125,099,015.27/11,022.72
  6. Step 6: Final answer
    x = 11,349.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.